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This article in JEQ

  1. Vol. 39 No. 5, p. 1545-1553
     
    Received: Dec 8, 2009


    * Corresponding author(s): martin.chantigny@agr.gc.ca
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doi:10.2134/jeq2009.0482

Soil Nitrous Oxide Emissions Following Band-Incorporation of Fertilizer Nitrogen and Swine Manure

  1. Martin H. Chantigny *a,
  2. Philippe Rochettea,
  3. Denis A. Angersa,
  4. Shabtai Bittmanb,
  5. Katherine Buckleyc,
  6. Daniel Masséd,
  7. Gilles Bélangera,
  8. Nikita Eriksen-Hamela and
  9. Marc-Olivier Gassere
  1. a Agriculture and Agri-Food Canada, Soils and Crops Research and Development Centre, 2560 Hochelaga Blvd, Québec, QC, Canada, G1V 2J3
    b Agriculture and Agri-Food Canada, Pacific Agriculture Research Centre, Box 1000, Agassiz, BC, Canada, V0M 1A0
    c Agriculture and Agri-Food Canada, Brandon Research Centre, 18th St. & Grand Valley Rd., Brandon, MB, Canada, R7A 5Y3
    d Agriculture and Agri-Food Canada, Dairy Cattle and Swine Research Centre, 2000, College St., C.P. 90, Sherbrooke, QC, Canada, J1M 1Z3
    e Institut de recherche et de développement en agroenvironnement, 2700 Einstein, Québec, QC, Canada, G1P 3W8. Assigned to Associate Editor Barbara Amon

Abstract

Treatment of liquid swine manure (LSM) offers opportunities to improve manure nutrient management. However, N2O fluxes and cumulative emissions resulting from application of treated LSM are not well documented. Nitrous oxide emissions were monitored following band-incorporation of 100 kg N ha−1 of either mineral fertilizer, raw LSM, or four pretreated LSMs (anaerobic digestion; anaerobic digestion + flocculation; filtration; decantation) at the four-leaf stage of corn (Zea mays L.). In a clay soil, a larger proportion of applied N was lost as N2O with the mineral fertilizer (average of 6.6%) than with LSMs (3.1–5.0%), whereas in a loam soil, the proportion of applied N lost as N2O was lower with the mineral fertilizer (average of 0.4%) than with LSMs (1.2–2.4%). Emissions were related to soil NO3 intensity in the clay soil, whereas they were related to water-extractable organic C in the loam soil. This suggests that N2O production was N limited in the clay soil and C limited in the loam soil, and would explain the interaction found between N sources and soil type. The large N2O emission coefficients measured in many treatments, and the contradicting responses among N sources depending on soil type, indicate that (i) the Intergovernmental Panel on Climate Change (IPCC) default value (1%) may seriously underestimate N2O emissions from fine-textured soils where fertilizer N and manure are band-incorporated, and (ii) site-specific factors, such as drainage conditions and soil properties (e.g., texture, organic matter content), have a differential influence on emissions depending on N source.

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Copyright © 2010. American Society of Agronomy, Crop Science Society of America, Soil Science SocietyAmerican Society of Agronomy, Crop Science Society of America, and Soil Science Society of America